This is a minor thing to pick up on but I hate the way the camera is pulled out of the first person view to denote the chimera arriving, rather than attempting to attract the player's attention in a much more immersive way - or just running the risk of letting them miss it completely, like Valve do with various G-Man sequences in Half-Life. It would probably make what happens next much more surprising than a 'HEY LOOK, ENCOUNTER NOW' cutscene.